diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/x11/headless.rs | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/src/x11/headless.rs b/src/x11/headless.rs index 71232e5..977305a 100644 --- a/src/x11/headless.rs +++ b/src/x11/headless.rs @@ -1,5 +1,5 @@ use HeadlessRendererBuilder; -use CreationError; +use {CreationError, OsError}; use libc; use std::{mem, ptr}; use super::ffi; @@ -18,16 +18,23 @@ impl HeadlessContext { height: builder.dimensions.1, buffer: Vec::from_elem(builder.dimensions.0 * builder.dimensions.1, unsafe { mem::uninitialized() }), context: unsafe { - // TODO: check errors - ffi::OSMesaCreateContext(0x1908, ptr::null()) + let ctxt = ffi::OSMesaCreateContext(0x1908, ptr::null()); + if ctxt.is_null() { + return Err(OsError("OSMesaCreateContext failed".to_string())); + } + ctxt } }) } pub unsafe fn make_current(&self) { - ffi::OSMesaMakeCurrent(self.context, + let ret = ffi::OSMesaMakeCurrent(self.context, self.buffer.as_ptr() as *mut libc::c_void, 0x1401, self.width as libc::c_int, self.height as libc::c_int); + + if ret == 0 { + panic!("OSMesaMakeCurrent failed") + } } pub fn get_proc_address(&self, addr: &str) -> *const () { |